Exterior Lighting System DTCS: Headlamps

DTC	Description	Action
B1087:86	LIN Bus "A": Signal Invalid	If the low beams and the windshield wipers are both on, GO to PINPOINT TEST C If only the low beams are on, GO to PINPOINT TEST C If only the windshield wipers are on, REFER to: WIPERS AND WASHERS (501-16 Wipers and Washers, Diagnosis and Testing).
B1087:88	LIN Bus "A": Bus off	If the low beams and the windshield wipers are both on, GO to PINPOINT TEST C If only the low beams are on, GO to PINPOINT TEST C If only the windshield wipers are on, REFER to: WIPERS AND WASHERS (501-16 Wipers and Washers, Diagnosis and Testing).
B1130:07	Light Switch Module: Mechanical Failure	INSTALL a new headlamp switch. REFER to: HEADLAMP SWITCH (417-01 Exterior Lighting, Removal and Installation).
B1130:83	Light Switch Module: Value of Signal Protection Calculation Incorrect	GO to PINPOINT TEST C
B1130:87	Light Switch Module: Missing Message	GO to PINPOINT TEST C
B1D00:11	Left Low Beam: Circuit Short to Ground	GO to PINPOINT TEST A
B1D00:15	Left Low Beam: Circuit Short to Battery or Open	If the low beam is inoperative, GO to PINPOINT TEST A If the low beam is always on, GO to PINPOINT TEST C
B1D01:11	Right Low Beam: Circuit Short to Ground	GO to PINPOINT TEST A
B1D01:15	Right Low Beam: Circuit Short to Battery or Open	If the low beam is inoperative, GO to PINPOINT TEST A If the low beam is always on, GO to PINPOINT TEST C